Influence of rare earth metals on the characteristics of anodic oxide films on aluminium and their dissolution behaviour in NaOH solution

2010 ◽  
Vol 52 (2) ◽  
pp. 322-326 ◽  
Author(s):  
F. Rosalbino ◽  
S. Delsante ◽  
G. Borzone ◽  
E. Angelini
Keyword(s):  
Rare Earth ◽  
Rare Earth Metals ◽  
Oxide Films ◽  
Anodic Oxide ◽  
Anodic Oxide Films ◽  
Dissolution Behaviour ◽  
Naoh Solution

Effect of Nb alloying additions on the characteristics of anodic oxide films on zirconium and their stability in NaOH solution

2009 ◽  
Vol 14 (8) ◽  
pp. 1451-1455 ◽  
Author(s):  
Francesco Rosalbino ◽  
Daniele Macciò ◽  
Adriana Saccone ◽  
Emma Angelini ◽  
Stefano Delfino
Keyword(s):  
Oxide Films ◽  
Anodic Oxide ◽  
Alloying Additions ◽  
Anodic Oxide Films ◽  
Naoh Solution ◽  
Nb Alloying

Effects of Current Density on the Formation of Anodic Oxide Films on AZ91

2006 ◽  
Vol 510-511 ◽  
pp. 166-169
Author(s):  
Seong Jong Kim ◽  
Jeong Il Kim
Keyword(s):  
Corrosion Resistance ◽  
Current Density ◽  
Anodic Polarization ◽  
Oxide Films ◽  
Anodic Oxide ◽  
Anodic Polarization Curve ◽  
Al Alloy ◽  
Anodic Oxide Films ◽  
Active Metal ◽  
Naoh Solution

Magnesium must be surface treated to prevent corrosion, since it is a very active metal electrochemically. On anodizing, a compact film several tens of micrometers thick forms on magnesium, which imparts good corrosion resistance. The Mg-Al alloy (AZ91) was anodized in 1 M NaOH solution. The surface morphology of the anodized films was observed using scanning electron microscopy (SEM), energy-dispersive x-ray (EDX), and electrochemical methods. The effects of current density on the formation of anodic oxide films for a Mg-Al alloy in 1 M NaOH were investigated. In the anodic polarization curve, the reference corrosion potentials were far greater at 4-9 mA/cm2 than at 1 mA/cm2. The film that formed at 1 mA/cm2 was thin, suggesting that parts of the film had been dissolved or destroyed during the anodic polarization test. Corrosion resistance differed owing to concentric differences in current flow. Thick anodic oxide films were formed at higher applied currents.

Kinetic studies of the dissolution behaviour of anodic oxide films on Zr in H2SO4

1983 ◽  
Vol 147 (1-2) ◽  
pp. 181-191 ◽  
Author(s):  
M.S. El-Basiouny ◽  
A.A. Mazhar ◽  
F. El-Taib Heakal ◽  
M.A. Ameer
Keyword(s):  
Oxide Films ◽  
Kinetic Studies ◽  
Anodic Oxide ◽  
Anodic Oxide Films ◽  
Dissolution Behaviour

Crystallization in anodic oxide films

1988 ◽  
Vol 28 (1) ◽  
pp. 43-56 ◽  
Author(s):  
J.S.L. Leach ◽  
B.R. Pearson
Keyword(s):  
Oxide Films ◽  
Anodic Oxide ◽  
Anodic Oxide Films
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